Improvement in harvester-cutters



e. L. DULANEY.

Harvester Cutter.

Patented MayV 18,11869.

G. L. DU IANEY, OF MEGHANIGSBURG, PENNSYLVANIA.

IMPROVEM ENT IN HARVESTER-CUTTERS.

Speciication forming part of Letters Patent No. 90,086, dated May 18, 1869.

To all whom it may concern:

Beit known that I, G. L. DU LANEY, of Mechanicsburg, in the, county of Cumberland and btate of Pennsylvania, have invented new and useful Improvements in Harvester-Guti ters; and I do hereby declare that the following is a full and exact description thereof', reference being had to the accompanying drawings, and to the letters of reference marked thereon.

Figure 1 is a perspective view of the cutterbar with the cutter-blades locked in position by the lock-bolt. Fig. 2 is atransverse view i of a section or end of the cutter-bar, showing the position of the groove and lock-bolt.

Fig.

3 is a vertical side view of the lock-bolt. Fig.

A 4 is a t-op view ofthe cutter-blade, showing the slot into which the lock-bolt takes when in proper position in the sickle-bar.

The nature of my invention consists in a peculiar arrangement and combination of devices for securing the cutter-blades to the cutter-bar of harvesting-machines without the use of screws or rivets, and making them detachable at will.

To enable others skilled in the art to make and use my invention, I will proceed to describe its construction and operation.

The cutter-bar B is supplied with a longitudinal central groove, C, immediately beneath the cutter-blades c a a,'for the reception of and free action of the lock-bolt D.

The har B is further provided with transverse dovetailed receptacles, for the reception of, and corresponding to the shape of, the shank of each cutter-blade.

The lock-bolt D is supplied with alternate rises and depressions, (see Fig. 3,) of corre-- sponding size and shape to the groove C, F1g.

1, and space between each cutter-blade, so that, while the depressed or thinner portion of the lock-bolt D passes freely beneath the blades, the thick or raised part projects upward and lls the groove in the space between each blade, so as to ltake into the slot E that has been formed in the cutter-blades for that purpose. (See Fig. 4.)

The end of said lock-bolt is made exible, and is further supplied with a lock-pin, P, that securely holds the lock-bolt in place, when locked, by springing into a correspondingshaped hole or socket formed in the end of the cutter-bar for that purpose.

The cutter-blades a, a a and a? are each formed with abevel or dovetailed-shaped shank or tenon, that exactly corresponds to and fits in Vareceptacle that has been previously formed at regular intervals in the cutter-bar B for that purpose, and is further provided with a slot,-

E, for the reception ofthe raised parts of the lock-bolt D. (See Figs. l and 4.)

The operation of these several combinations of devices is readily understood, and is as follows: The lock-bolt D is placed in the groove that has been previously formed in the cutterbar B. The cutter-blades a are next slipped in their respective places, (the transverse dovetailed receptacles,) 1, 2, 3, Fig. '1, the bolt D pressed down into the slots E until the lockpin F springs into the hole or socket in the bar B, when all is secure.

Having fully set forth and described the nature and construction of my improved harvester-cutter, what I claim, and desire to secure by Letters Patent of the United States, is

l. The lock-bolt D, when constructed and operated as shown and described, and for the purpose set forth.

2. The cutters a c a, constructed substantially as shown and described.

3. The combination of the bar B, constructed with a groove, G, the lock-bolt D, andthe cutters a a a, when constructed and arranged as shown and described.

G. L. DU LANEY.

Vitnesses:

THEO.V Gnrssnvcfnn, J osErH LEAs. 

